Search a number
-
+
85365736231521 = 329229127714712281
BaseRepresentation
bin10011011010001111000010…
…011000100101001001100001
3102012020212212221012201212210
4103122033002120211021201
542142113011433402041
6501320251113512333
723660320344422664
oct2332170230451141
9365225787181783
1085365736231521
1125222450693669
1296a85504126a9
133882c53a276a5
141711a1babd6db
159d085a951016
hex4da3c2625261

85365736231521 has 64 divisors (see below), whose sum is σ = 118485003571200. Its totient is φ = 54604159948800.

The previous prime is 85365736231499. The next prime is 85365736231621. The reversal of 85365736231521 is 12513263756358.

It is not a de Polignac number, because 85365736231521 - 225 = 85365702677089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85365736231621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37424696901 + ... + 37424699181.

It is an arithmetic number, because the mean of its divisors is an integer number (1851328180800).

Almost surely, 285365736231521 is an apocalyptic number.

It is an amenable number.

85365736231521 is a deficient number, since it is larger than the sum of its proper divisors (33119267339679).

85365736231521 is a wasteful number, since it uses less digits than its factorization.

85365736231521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290.

The product of its digits is 27216000, while the sum is 57.

Adding to 85365736231521 its reverse (12513263756358), we get a palindrome (97878999987879).

The spelling of 85365736231521 in words is "eighty-five trillion, three hundred sixty-five billion, seven hundred thirty-six million, two hundred thirty-one thousand, five hundred twenty-one".

Divisors: 1 3 29 87 229 687 1277 1471 2281 3831 4413 6641 6843 19923 37033 42659 66149 111099 127977 198447 292433 336859 522349 877299 1010577 1567047 1878467 2912837 3355351 5635401 8480557 8738511 9768911 10066053 15148121 25441671 29306733 45444363 54475543 84472273 97305179 163426629 253416819 291915537 430168943 667039673 768375379 1290506829 2001119019 2305126137 4284783227 12474899347 12854349681 19344150517 22282885991 37424698041 58032451551 66848657973 124258713583 372776140749 981215358983 2943646076949 28455245410507 85365736231521